Behind the lab’s door you find this switch. You can turn to the red
size to turn on the “Laboratory in use” indication outside the lab
(hoping that nobity will bother you during testing).
fill two syringes (about a half) with SuperVisc gel without the
needles (we usually put the needle in front of the participant to prove
that we use them only once). We usually cover the syringes with some
paper to avoid participants’ anxious reactions.
put a bit of Nuprep (scrub) gel inside the green cup.
put the informed consent and a pen on the desk where participant
will perform the experiment.
take the electrodes (reference and ground also) and put the adhesive
discs where necessary.
Be sure that you have all the necessary to do the montage (e.g.,
where is the measuring tape?).
Put some paper towel/blotting paper or something similar on the sink
that participant will use after the experiment to clean the gel.
Scrub below the left eye, near to the external canthi considering
that the electrodes will be placed aligned to the pupils.
Scrub the earlobes.
Put the cap.
Move the hair with the needle, put some gel, and then move the hair
again if necessary. Remember that we say to participants that we are
only moving the hair, but we are also doing a little scrub with the
needle (that is necessary to reduce impedence).
Put the scalp electrodes first, and then the external ones (eyes’
and earlobes’ electrodes).